CVE-2025-39963
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix incorrect io_kiocb reference in io_link_skb
In io_link_skb function, there is a bug where prev_notif is incorrectly assigned using 'nd' instead of 'prev_nd'. This causes the context validation check to compare the current notification with itself instead of comparing it with the previous notification.
Fix by using the correct prev_nd parameter when obtaining prev_notif.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 6fe4220912d19152a26ce19713ab232f4263018d < a89c34babc2e5834aa0905278f26f4dbe4b26b76 | affected |
| Linux | Linux | 6fe4220912d19152a26ce19713ab232f4263018d < 50a98ce1ea694f1ff8e87bc2f8f84096d1736f6a | affected |
| Linux | Linux | 6fe4220912d19152a26ce19713ab232f4263018d < 2c139a47eff8de24e3350dadb4c9d5e3426db826 | affected |
| Linux | Linux | 6.10 | affected |
| Linux | Linux | 0 < 6.10 | unaffected |
| Linux | Linux | 6.12.49 <= 6.12.* | unaffected |
| Linux | Linux | 6.16.9 <= 6.16.* | unaffected |
| Linux | Linux | 6.17 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/a89c34babc2e5834aa0905278f26f4dbe4b26b76
- https://git.kernel.org/stable/c/50a98ce1ea694f1ff8e87bc2f8f84096d1736f6a
- https://git.kernel.org/stable/c/2c139a47eff8de24e3350dadb4c9d5e3426db826
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